Seneschal

n. manager of the domestic and administrative affairs of a medieval estate, steward

A seneschal was an officer in the houses of important nobles in the Middle Ages. In the French administrative system of the Middle Ages, the term sénéchal was also a royal officer in charge of justice and control of the administration in southern provinces, equivalent to the northern French bailli.
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Noun
1. the chief steward or butler of a great household
(synonym) major-domo
(hypernym) servant, retainer

(n.)
An officer in the houses of princes and dignitaries, in the Middle Ages, who had the superintendence of feasts and domestic ceremonies; a steward. Sometimes the seneschal had the dispensing of justice, and was given high military commands.
  

Lord’s representative in the administration of an estate, presiding at manorial courts , auditing accounts, conduct inquests, and the like. Within the SCA , the seneschal is the chief administrative officer for a shire or college. In a barony or larger unit, they serve under the baron , prince or king , depending upon the size for a region, responsible for the day to day administration and non-executive issues.